User:Lndupey/sandbox

'''Comment: I made a few changes to make it more enclyclopedic, and removed the detailed question list, which probably can't be included on the wiki. ShaneTMueller (talk)''

Morningness-eveningness questionnaire

The Morningness-Eveningness Questionnaire
The Morningness-Eveningness Questionnaire (MEQ) is a self-assessment questionnaire originated by Horne and Ostberg in 1976 , which has been measured and validated against circadian rhythm variation of oral temperature. Its main purpose is to measure whether a person's peak sleepiness and alertness is in the morning versus evening. The original published study on the MEQ showed that the peak time of day subjects associated with correlated with a higher body temperature: Morning types had a higher peak oral temperature in the morning, and Evening types had a higher peak temperature in the evening, with the intermediate types having temperatures between the two groups. The MEQ is widely used in many areas of psychological and medical research, and has been cited more than 1500 times.

MEQ Questions
The MEQ consists of 19 multiple-choice questions, with each question having four response options. Several example questions are shown in the inset table. Responses to the questions are combined to form a composite score which indicates the degree to which the respondent favors morning versus evening.

Related Research
Song and Stough showed ‘morningness’ participants performed worse in the morning on the MAB-IQ & IT task, and same for the ‘eveningness’ participants. Does not support the hypothesis that there is a reliable relationship between morningness-eveningness, time of day & cognitive ability.

Hur, Bouchard and Lykken studied monozygotic & dizygotic twins, results showed that 54% of variance in morningness-eveningness was due to genetic variability, 3% was due to age, and the rest was explained by non-shared environmental influences & errors in measurement.

Diaz-Morales and Sanchez-Lopez examined the relationship between morningness and and anxiety in adults aged 40-63. They found a negative correlation between morningness and anxiety in women, but not in men. These results suggest gender-related variables may be attributed to morningness and eveningness when looking at anxiety.

Category:Neuropsychological tests